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Glucose Homeostasis: Regulation of Blood Glucose01:02

Glucose Homeostasis: Regulation of Blood Glucose

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Carbohydrates consumed through foods are converted into glucose, a crucial energy source for the body. In the prandial state, high blood glucose levels stimulate the secretion of insulin from the pancreas. Insulin inhibits hepatic glucose production and stimulates glucose uptake and metabolism by muscle and adipose tissue. The excess glucose is converted into glycogen and stored in the liver and muscles.
During fasting, when blood glucose levels are low, the pancreas secretes glucagon. it...
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Glucose Level Sensing Using Single Asymmetric Split Ring Resonator.

Gameel Saleh1, Ijlal Shahrukh Ateeq1, Ibraheem Al-Naib1

  • 1Biomedical Engineering Department, College of Engineering, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia.

Sensors (Basel, Switzerland)
|April 30, 2021
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Summary
This summary is machine-generated.

This study introduces a novel metamaterial asymmetric resonator biosensor for precise glucose level detection. The biosensor demonstrates high sensitivity and accuracy for sensing glucose concentrations across various health conditions.

Keywords:
asymmetric split resonatorglucose levelmetamaterialrectangular waveguide

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Area of Science:

  • Metamaterials
  • Biosensing Technology
  • Electromagnetics

Background:

  • Accurate glucose monitoring is crucial for managing diabetes.
  • Existing biosensing methods face challenges in sensitivity and sample volume.
  • Metamaterials offer unique electromagnetic properties for enhanced sensing applications.

Purpose of the Study:

  • To design and validate a metamaterial asymmetric resonator biosensor for glucose level detection.
  • To investigate the biosensor's performance using small sample volumes (1 µL).
  • To assess the biosensor's sensitivity and accuracy across a range of glucose concentrations.

Main Methods:

  • Fabrication of a single metamaterial asymmetric resonator with a semicircular gap.
  • Application of glucose solutions (41–312 mg/dL) to the resonator.
  • Measurement of resonance frequency shifts in response to varying glucose concentrations.
  • Analysis of transmission amplitude and coefficient of determination for model fitting.

Main Results:

  • The biosensor accurately detected glucose concentrations from hypoglycemia to hyperglycemia.
  • Resonance frequency redshift directly correlated with increased glucose levels.
  • A high coefficient of determination (0.9997) indicated excellent prediction fitting.
  • The biosensor achieved a remarkable sensitivity of 438 kHz/(mg/dL).

Conclusions:

  • The developed metamaterial biosensor offers a highly sensitive and accurate method for glucose sensing.
  • The unique resonator design enhances electromagnetic wave-matter interaction for improved performance.
  • This technology holds promise for advanced glucose monitoring systems.